Professor Peter Collignon said a small percentage of the vaccinated population would test positive for Covid-19 following their first and second doses of the vaccine. So we haven't been able to find an exact source or explanation for how this person became infected," Chant said. "You don't get full protection after one dose, so it will not be surprising to see a small number of people get the virus after vaccination." "However, that number of vaccinated people who will contract the virus will still be lower than if they didn't get the vaccine. Nothing is absolute, anyway; two does of any vaccine does not make you completely impervious to the virus.

Source: New Zealand Herald March 15, 2021 00:37 UTC